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** Changed in: systemd (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1676820

Title:
  systemd-resolved giving false negatives

Status in systemd package in Ubuntu:
  Invalid

Bug description:
  Hi,
  I was just debugging why so many of my virtual machines have so much trouble 
in getting DNS responses and found, that the dnsmasq on the host machine, which 
is the DNS resolver for all machines asks the three (!) name servers given in 
/etc/resolv.conf, which is the regular two DNS resolvers from the LAN and 
127.0.0.53 where systemd-resolved is running. 

  So every time dnsmasq is asking this systemd-resolved (in about one in
  three queries) it happens often, not always, that systemd-resolved is
  giving false negatives.

  
  I currently do not see why systemd should bring it's own DNS resolver at all, 
and even worse, force that into /etc/resolv.conf, causing lots of trouble with 
false replies. 

  That's just another chapter of the intrusive natur of systemd.

  What the hell should such a third nameserver be good for?

  ProblemType: Bug
  DistroRelease: Ubuntu 16.10
  Package: systemd 231-9ubuntu3
  ProcVersionSignature: Ubuntu 4.8.0-41.44-generic 4.8.17
  Uname: Linux 4.8.0-41-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.3-0ubuntu8.2
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Tue Mar 28 12:06:13 2017
  InstallationDate: Installed on 2016-04-22 (339 days ago)
  InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 004: ID 0bda:0821 Realtek Semiconductor Corp. 
   Bus 001 Device 003: ID 046d:c31d Logitech, Inc. Media Keyboard K200
   Bus 001 Device 002: ID 046d:c05b Logitech, Inc. M-U0004 810-001317 [B110 
Optical USB Mouse]
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-41-generic 
root=UUID=d0b47754-d5ca-49ec-8190-92a24e58e373 ro rootflags=subvol=@ nosplash 
noplymouth nomodeset text
  SourcePackage: systemd
  UpgradeStatus: Upgraded to yakkety on 2016-10-17 (162 days ago)
  dmi.bios.date: 03/16/2016
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.50
  dmi.board.name: N3150-NUC
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrP1.50:bd03/16/2016:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnN3150-NUC:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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